Identification_Information: Citation: Citation_Information: Originator: Jean Kenyon; Coral Reef Ecosystem Division (CRED), Pacific Island Fisheries Sciences Center, NOAA National Marine Fisheries Service Publication_Date: 20090529 Title: CRED REA Coral Population Parameters at Agrihan, Marianas Archipelago, 2007 Geospatial_Data_Presentation_Form: spreadsheet Online_Linkage: http://www.pifsc.noaa.gov/cred/eco_assess.php Description: Abstract: Belt transects along 2 consecutively-placed, 25m transect lines were surveyed as part of Rapid Ecological Assessments conducted at 3 sites at Agrihan in the Marianas Archipelago (MA) during 25 May - 09 June 2007 in the NOAA Hi'ialakai Reef Assessment and Monitoring Program (RAMP) Cruise (HI0703). Raw survey data included species presence and relative abundance, colony counts and size classes by genus, and determination of benthic cover using the line-intercept method. Depending on colony density, 0.5 or 1 m on each side of the transect lines was included in the belt (for a total of 25-100m2 per site). Purpose: Part of a long-term monitoring program at biennial intervals in which corals, algae, fish, and other macroinvertebrates are co-sampled along the same set of transect lines. Supplemental_Information: Maximum depth was 14 meters. Corals Observed: Common Name Species/Genus Family Order Class Phylum/Division Kingdom Coral Pavona Agariciidae Scleractinia Anthozoa Cnidaria Animalia Coral Pocillopora Pocilloporidae Scleractinia Anthozoa Cnidaria Animalia Coral Goniastrea Faviidae Scleractinia Anthozoa Cnidaria Animalia Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20070525 Ending_Date: 20070609 Currentness_Reference: Ground condition Status: Progress: In Work Maintenance_and_Update_Frequency: biennial Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: 145.625762 East_Bounding_Coordinate: 145.705743 North_Bounding_Coordinate: 18.823275 South_Bounding_Coordinate: 18.716814 Keywords: Theme: Theme_Keyword_Thesaurus: CoRIS Theme Thesaurus Theme_Keyword: EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs Theme_Keyword: EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Rapid Assessment Studies Theme_Keyword: EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > Coral Cover Theme_Keyword: EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs > Coral Reef Ecology > BioDiversity Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Marine Ecosystem Theme_Keyword: Reef Assessment and Monitoring Program (RAMP) Theme_Keyword: Rapid Ecological Assessments (REA) Theme_Keyword: HI0703 Theme: Theme_Keyword_Thesaurus: CoRIS Discovery Thesaurus Theme_Keyword: Numeric Data Sets > Biology Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: biota Theme_Keyword: 002 Place: Place_Keyword_Thesaurus: CoRIS Place Thesaurus Place_Keyword: OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Agrihan Island > Agrihan Island (18N145E0002) Place_Keyword: COUNTRY/TERRITORY > Northern Mariana Islands > Agrihan Island > Agrihan Island (18N145E0002) Access_Constraints: Data are available two years following data collection date. Use_Constraints: Please cite CRED when using the data. Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Coral Reef Ecosystem Division (CRED), Pacific Island Fisheries Sciences Center, NOAA National Marine Fisheries Service Contact_Person: Dr. Jean Kenyon or Dr. Bernardo Vargas-Angel Contact_Address: Address_Type: mailing and physical Address: 1125B Ala Moana Blvd. City: Honolulu State_or_Province: HI Postal_Code: 96814 Country: U.S.A. Contact_Voice_Telephone: 808-983-3737 Contact_Facsimile_Telephone: 808-983-3730 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Observations were made by two divers who are experts in coral biology. The population parameter survey is conducted one time per site per survey year; it is not replicated. Logical_Consistency_Report: With the exception of the non-quantitative survey along the backreef, the same methods of data collection were used at each of the sites surveyed at this location, and were conducted by the same scientists. Completeness_Report: The survey sites were selected to be representative of the dominant habitats at this reef system. Efforts were made to include broad spatial coverage of the reef area, but weather conditions or other environmental constraints may have precluded the team from surveying windward or exposed sites. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: GPS unit Quantitative_Horizontal_Positional_Accuracy_Assessment: Horizontal_Positional_Accuracy_Value: 1 Horizontal_Positional_Accuracy_Explanation: Instrument parameters Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Dive computer and SCUBA depth gauge Quantitative_Vertical_Positional_Accuracy_Assessment: Vertical_Positional_Accuracy_Value: 0.3 Vertical_Positional_Accuracy_Explanation: Instrument parameters Lineage: Process_Step: Process_Description: A diver swam along the length of three 25m transect lines that had previously been laid out along an isobath by a fish survey team and haphazardly tossed a 0.5m x 0.5m quadrat 16 separate times. The diver identified all corals whose center fell within the quadrat to the species level and listed coral species occurring within 0.5 m2 of each side of the transect lines and the size class to which the maximum diameter of the colony belongs ( 5 cm; 5-10 cm; 10-20 cm; 20-40cm; 40-80 cm; 80-160 cm; or greater than 160 cm). For each coral colony, the maximum diameter and diameter perpendicular to the maximum was measured using a hand-held tape measure. A random swim is then conducted in the vicinity of the transect lines within an area of about 5,000m2 in which all coral species are listed and assigned a DACOR abundance code based on visual estimation (D equals Dominant, A equals Abundant, C equals Common, O equals Occasional, R equals Rare). If bottom time permits, corals showing signs of disease, bleaching, or abnormal growth are tallied, described, and photographed. Process_Date: 20070609 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.0001 Longitude_Resolution: 0.0001 Geographic_Coordinate_Units: Degrees and Decimal Minutes Geodetic_Model: Horizontal_Datum_Name: World Geodetic System 1984 (WGS84) Ellipsoid_Name: Geodetic Reference System 80 (GRS80) Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.2572236 Vertical_Coordinate_System_Definition: Depth_System_Definition: Depth_Datum_Name: Local surface Depth_Resolution: 1 Depth_Distance_Units: meters Depth_Encoding_Method: Explicit Depth Coordinate Included with Horizontal Coordinates Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Coral Reef Ecosystem Division (CRED), Pacific Island Fisheries Sciences Center, NOAA National Marine Fisheries Service Contact_Person: Michael Parke Contact_Address: Address_Type: mailing and physical Address: 1125B Ala Moana Blvd. City: Honolulu State_or_Province: HI Postal_Code: 96814 Country: U.S.A. Contact_Voice_Telephone: 808-983-3725 Contact_Facsimile_Telephone: 808-983-3730 Contact_Electronic_Mail_Address: Michael.Parke@noaa.gov Distribution_Liability: While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor dies the fact of distribution constitute such a warranty. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: XLS (Microsoft Excel worksheet) Digital_Transfer_Option: Offline_Option: Offline_Media: CDROM, or email Recording_Format: ISO 9660 Fees: None if receiving the data online Custom_Order_Process: Contact CRED data management team for information Technical_Prerequisites: Contact CRED data management team for information Metadata_Reference_Information: Metadata_Date: 20080812 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Coral Reef Ecosystem Division (CRED), Pacific Island Fisheries Sciences Center, National Marine Fisheries Service Contact_Person: Haiying Wang Contact_Address: Address_Type: mailing and physical Address: 1125B Ala Moana Blvd. City: Honolulu State_or_Province: HI Postal_Code: 96814 Country: U.S.A. Contact_Voice_Telephone: 808-983-3742 Contact_Facsimile_Telephone: 808-983-3730 Contact_Electronic_Mail_Address: Haiying.Wang@noaa.gov Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 CoRIS: CoRIS_ID: 20080225040200 CoRIS_Children: None CoRIS_Beginning_Date: 20070525 CoRIS_Ending_Date: 20070609 CoRIS_Metadata_Link: http://www.coris.noaa.gov/metadata/records/txt/cred_rea_corals_agrihan_island_2007.txt CoRIS_Tracking_ID: 1979